Traffic exchange users are comparatively low quality, but they’re still real humans. You’re getting real people to view your site, you’re just not bringing them in organically the way Google intends. You can make money from these users, but your conversion rate will be typically lower than what you might see from organic traffic. Of course, it’s also much cheaper and faster to find this traffic than it is to invest in SEO and content marketing.
“In conclusion, this research illuminates how content characteristics shape whether it becomes viral. When attempting to generate word of mouth, marketers often try targeting “influentials,” or opinion leaders (i.e., some small set of special people who, whether through having more social ties or being more persuasive, theoretically have more influence than others). Although this approach is pervasive,recent research has cast doubt on its value (Bakshy et al. 2011; Watts 2007) and suggests that it is far from cost effective. Rather than targeting “special” people, the current research suggests that it may be more beneficial to focus on crafting contagious content. By considering how psychological processes shape social transmission, it is possible to gain deeper insight into collective outcomes, such as what becomes viral.”

Search engines crawl the Internet to find Web content and return it to update their massive databases. Savvy online marketers can craft their website content by tracking the most popular Internet search terms related to your business (with tools such as Google or Bing webmaster tools or Google Analytics), and ensuring their website contains those terms. Remember, it takes a few months for SEO to start kicking in, so the sooner you start, the sooner you’ll see results.

Don’t panic, and take a step back to see the bigger picture. Perhaps customers are engaging with your website primarily on mobile rather than desktop. If your mobile site isn’t optimized or they are instead using your app, then this could be why. This gives you insight into how consumer behaviors change over time and where they are most likely to engage with your brand. - Preethy Vaidyanathan, Tapad

You have also mentioned Quuu for article sharing and driving traffic. I have been using Quuu for quite sometime now and I don’t think they’re worth it. While the content does get shared a lot, there are hardly any clicks to the site. Even the clicks that are there, average time is like 0.02 seconds compared to more than 2 minutes for other sources of traffic on my website. I have heard a few guys having a similar experience with Quuu and so, I thought should let you know.

Search engine optimization (SEO), is the ongoing practice of optimizing a website to help improve its rankings in the search engines. Several internal and external factors are involved which can help improve a site's listing within the search engines. The higher a site ranks within the search engines for a particular keyword, the more traffic they will receive.